page_title: Point Lynas Lighthouse
section_title: The lantern
hierarchical_section_title: Point Lynas Lighthouse / The lantern
caption_attribution_description: English: Not unlike something from Doctor Who, the light at Point Lynas Lighthouse, glass manufactured by Chance Bros.
context_page_description: Point Lynas Lighthouse is located on a headland in Llaneilian Community, on the north-east corner of Anglesey in North Wales. A pilot station was established on the point in 1766, to guide ships entering and leaving Liverpool, with an associated lighthouse added in 1779. The present building was built on the hilltop in 1835, so does not need a tower. Built and managed by the Mersey Docks and Harbour Board, it did not come under the care of Trinity House until 1973. By 2001 the lights were fully automated, so no resident staff were needed. whilst the light is retained in operational use, the building and associated lighthouse keepers cottages were returned to the Mersey Docks and Harbour Board who sold them to be a private home and holiday accommodation.
context_section_description: The unusual arrangement of having the lantern at ground level with the look-out and telegraph room above is similar to the Great Orme Lighthouse, also built by the Mersey Docks and Harbour Board. The telegraph station was established in 1879, and two new cottages were erected to accommodate extra staff. Point Lynas has now been taken over by Trinity House.
  A Chance Brothers occulting optic was fitted in the light room in 1878. This is 1.4 metres (4 ft 7 in) in diameter and displays a light through 206 degrees. The fixed part of the optic consists of three sections, the central unit on the focal plane has a 0.25 metres (9.8 in) deep curved lens with bands of six prisms above and below it. The bottom unit is made up of six bands of reflective prisms, while the inclined top unit contains sixteen.
  The lamp is 1000W with an intensity of 112,000 candela and is white, occulting every 10 seconds, with a range of: 20 nautical miles (37 km; 23 mi)
caption: Detail of the optic lens
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